LEASES - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Operating Leases, After Adoption of 842:
2020	$ 10,290
2021	9,468
2022	7,665
2023	7,067
2024	5,303
2025 and beyond	15,738
Total lease payments	55,531
Less: interest	(10,610)
Present value of lease liabilities	44,921
Finance Leases, After Adoption of 842:
2020	1,644
2021	1,159
2022	581
2023	0
2024	0
2025 and beyond	0
Total lease payments	3,384
Less: interest	(235)
Present value of lease liabilities	3,149
Operating Leases, Before Adoption of 842
2019		$ 10,705
2020		8,384
2021		7,455
2022		5,691
2023		5,430
2024 and beyond		19,818
Total lease payments		57,483
Finance Leases, Before Adoption of 842
2019		1,386
2020		1,010
2021		288
2022		0
2023		0
2024 and beyond		0
Total lease payments		2,684
Less: interest		(321)
Present value of lease liabilities		2,363
Cash payments		$ 1,000
Percent of restructuring charges due in less than one year		50.00%
Restructuring payments, current, term (in years)		1 year
Sublease income	$ 374	$ 125
Minimum
Finance Leases, Before Adoption of 842
Restructuring payments, noncurrent, term (in years)		1 year
Maximum
Finance Leases, Before Adoption of 842
Restructuring payments, noncurrent, term (in years)		3 years

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